Clocks Traditional Cache

Finding the cache is easy enough, opening though will prove tough… the secrets in the hands of time, you’ll have to be clever and decipher the rhyme… one plus two, equals Three keep on reading and you’ll see… if two plus two equals four, what do you get when you add two more? Now I’ve given you one and two, you’ll only need one more clue…. Five plus six is getting close, hope you don’t find me verbose. Use your head and not brute force, if you do the cache is yours.